Something that I thought would be really expensive: iterating through a system and then returning it to a Lua function, apparently 10k calls only takes under 1 ms on my server. This shows a lot of room for additional functionality, and users will be able to have lots of scripts running.

This isn't testing the performance of the Lua VM, just the transfer of data into the VM.

This gives me great hope for my game :3 Lots of concurrent NPCs and player scripts.